Door-bolt



' A. E. DURLAND.

DOOR BOLT.

No. 497,445. Patented May 16, 1 8934 7 '272 ees I72 uezzfar' W 44/ 4/44WW. W 4:. I

ITED STATES ALBERT E. DURLAND, OF STAPLEHURS'I, NEBRASKA.

DOOR- BOLT.

SPEGIFICAT'ION forming part of Letters Patent No. 497,445, dated May 16,1893. Applicatiou filed January 31,1893- Serial No. 460,185. (No model.)

To all whom it may concern:

Be it known that I, ALBERT E. DURLAND, a citizen of the United States,residing at Staplehurst, in the county of Seward and State of Nebraska,have invented certain new and useful Improvements in Door or GateFasteners; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention has relation to improvements in door and gate fasteners,and it has for its general object to provide a fastener embodying asliding bolt and such means for manipulating said bolt that the samewill be locked against casual movement in its unlocked, as well as itslocked position.

A further object of the invention is to provide such means formanipulating the bolt that the same may be quickly and easily shot ineither direction.

To the attainment of the foregoing and other objects, the inventionconsists in combination with a sliding bolt, of a swinging lever pivotedor fulcrumed at one end, and a hand lever fulcrumed upon the swinginglever and pivotally connected to the sliding bolt; the said swinging andhand levers being so arranged with respect to each other and the boltthat when said boltrests in either its locked or unlocked position theswinging lever and the hand lever will rest in alignment and a deadcenter will be thereby formed which will prevent movement of the bolt ineither direction.

The invention will be fully understood from the following descriptionand claims when taken in connection with the accompanying drawings, inwhich Figure 1, is an elevation of my improved fastener applied to adoor; the bolt being illustratod in its locked position by full linesand in its unlocked position by dotted lines. Fig. 2, is a perspectiveview illustrating the bolt as partly shot.

Referring by letter to the said drawings: A,

indicates a door casing, and B, indicates a door, both of which may beof any ordinary or approved construction.

Suitably secured upon the casing A, is a keeper 0, for the engagement ofthe sliding bolt D, which takes through suitable guide straps a, b, andis preferably provided upon its outer edge at an intermediate point inits length with a shoulder or enlargement c, as shown, for a purposepresently described.

E, indicates the swinging lever, which may be pivoted or fulcrumedbetween the guide strap 1), and the door, as shown, or at any othersuitable point. Pivotally connected or fulcrumed at an intermediatepoint in its length to the swinging lever E, preferably at the free endthereof is the hand or manipulating lever M, which is preferablyprovided at one end with a hand piece m, and is pivotally or looselyconnected atits opposite end to the bolt. In effecting this connectionof the hand lever to the bolt I prefer to provide the bolt with a stapleas d, and the hand lever with a lateral stud or lug e,'which takesthrough the staple as illustrated. 4

In practice when it is desired to shoot the bolt into its lockedposition; the parts resting in the position illustrated bydotted linesin Fig. 1, the hand lever M, is swung down as shown in Fig. 2, and isthen swung upwardly toward the guide strap 19, until it rests inalignment with the lever E; the bolt being moved by such manipulation ofthe lever, through the keeper 0. When it is desired to move the boltinto its unlocked position, the movement of the hand lever M, is simplyreversed. I

From the foregoing description, it will be readily seen that while thebolt maybe easily and quickly shot through the medium of the hand leverM, it cannot be moved by pressure applied directly to it, while thelevers rest in alignment and form a dead center as before described.Thus it will be seen that a casual movement of the bolt from its lockedor unlocked position will be absolutely prevented.

Having described my invention, what I claim is- In a door or gatefastener, substantially as described, the combination with a slid-ablebolt; of a swinging lever E, pivoted or fulcrumed at one end to astationary support and a hand lever M, pivoted or fulcrumed at anintermediate point in its length upon the swinging lever at oradjacentto the swinging end thereof and also pivotally connected at one end tothe slidable bolt; the said swinging and hand levers being so arrangedWith In testimony whereof Iaffix my signature in respect to each otherand the bolt that when presence of two witnesses. said bolt rests ineither itslocked or unlocked position, theswingingleverandthehandleverALBERT E. DURLAND. 5 will rest in alignment so as to form a, dead\Vitnesses:

center, substantially as and for the purpose GEO. W. LOWLEY,

set forth. J. ARTHUR WHITE.

